Subaru XT 1988 Service Manual page 1068

4-7
Condition
I
FAUL TV CONDENSER
I
L ow-pressu re
gauge
Fig. 97
A26-076
AIR CONDITIONING SYSTEM
No cooling action: engine
may overheat.
Bubbles appear in sight
glass of drier.
Suction line is
very hot.
Probable cause
Condenser is often found
not functioning well.
I
HIGH PRESSURE LINE BLOCKED
I
Low-pressure
gauge
Fig.
98
A2S-077
I
FAUL TV COMPRESSOR
I
Low-pressure
gauge
Fig.
99
A26-078
Insufficient cooling.
Frosted high pressure
liquid line.
Insufficient cooling.
46
Drier clogged, or restric-
tion in high pressure line.
Internal problem in com-
pressor, or damaged gasket
and valve.
Corrective action
• Check condenser cool-
ing fan.
• Check condenser for
dirt accumulation.
• Check engine cooling
system for overheat.
• Check for refrigerant
overcharge.
If pressure remains high in
spite of all above actions
taken, remove and inspect
the condenser for possible
oil clogging.
1. Discharge system.
2.
Remove receiver drier
or strainer and replace
it.
3.
Evacuate and charge
system.
1. Discharge system.
2.
Remove and check
compressor.
3. Repair or replace com-
pressor.
4. Check oil level.
5. Replace receiver drier.
6. Evacuate and charge
system.
I